Infectious medical waste disinfection treatment device

Abstract

The utility model relates to an infectious medical waste disinfection treatment device which comprises a crusher used for crushing infectious medical waste, the crusher comprises a rack, a crusher feeding port, a driving motor, a crusher main shaft, a crusher rotor, a high-pressure output pipe and a discharging hopper, the crusher rotor is installed on the crusher main shaft, and the driving motor is installed on the rack; the driving motor is connected with a main shaft of the crusher, and crushed medical wastes are output through the high-pressure output pipe and then are sprayed out from the discharging hopper. And the electron accelerator is used for performing irradiation treatment on the crushed infectious medical wastes. The conveying belt is used for receiving the medical waste crushed by the crusher and conveying the medical waste to an irradiation opening of the electron accelerator, the crusher is arranged on one side of the conveying belt, and the electron accelerator is arranged on the other side of the conveying belt. The infectious medical waste disinfection treatment device has the advantages of being low in energy consumption, high in efficiency, safe, environmentally friendly and the like.

Description

Technical Field

[0001] This utility model relates to the field of medical waste treatment, and in particular to a disinfection and treatment device for infectious medical waste. Background Technology

[0002] Infectious medical waste refers to waste generated by hospitals, clinics, and other healthcare institutions during medical and other related activities that pose direct or indirect infectiousness and other hazards. Infectious medical waste contains a large number of pathogenic microorganisms that can easily remain latent and cause infection, including acute viruses. Improper disposal can easily cause varying degrees of pollution to soil, water, and air, endangering human health. Therefore, medical waste is included in the "National Hazardous Waste List" (2021 edition).

[0003] With the vigorous development of my country's medical and health undertakings, medical waste is increasing year by year. How to achieve the harmlessness, reduction, and resource utilization of medical waste has become an urgent problem to be solved. Currently, medical waste treatment technologies mainly include incineration and non-incineration technologies. Incineration technologies mainly include pyrolysis incineration and rotary kiln incineration, while non-incineration technologies mainly include high-temperature steam treatment, chemical treatment, and microwave treatment. Current medical waste treatment technologies suffer from problems such as resource waste, high energy consumption, large amounts of chemical reagents, numerous secondary pollutants, and high operating costs.

[0004] Currently, the concept of a circular economy is widely advocated internationally, with strict classification and management systems implemented for medical waste. Effective measures are being developed to reduce, recycle, and harmlessly treat medical waste. Meanwhile, in accordance with national policies such as the "Notice on Issuing the Comprehensive Management Plan for Medical Institution Waste," promoting unified collection, centralized storage, unified disposal, and closed-loop comprehensive utilization of medical waste will be the future trend in medical waste treatment.

[0005] Therefore, designing a safe, economical, environmentally friendly, and high-capacity infectious medical waste treatment device is an urgent problem to be solved. Utility Model Content

[0006] To address the aforementioned technical problems, this application provides an infectious medical waste disinfection and treatment device.

[0007] The technical solution of this application is that the infectious medical waste disinfection and treatment device includes:

[0008] A crusher is used to crush and process infectious medical waste. The crusher includes: a frame, a crusher inlet, a drive motor, a crusher main shaft, a crusher rotor, a high-pressure output pipe, and a discharge hopper. The crusher rotor is installed on the crusher main shaft, and the drive motor is connected to the crusher main shaft. The crushed medical waste is output through the high-pressure output pipe and then sprayed out from the discharge hopper.

[0009] Electron accelerators are used to irradiate fragmented infectious medical waste.

[0010] A conveyor belt is used to receive medical waste crushed by a crusher and transport it to the irradiation port of an electron accelerator. The crusher is located on one side of the conveyor belt, and the electron accelerator is located on the other side of the conveyor belt.

[0011] More specifically, a medical waste feed hopper is provided on one side of the conveyor belt, and the crusher is positioned above the medical waste feed hopper.

[0012] More specifically, the medical waste feed hopper is equipped with an adjusting valve to adjust the size of the feed hopper opening.

[0013] More specifically, a baffle is provided on the side of the feed hopper facing the conveyor belt direction. The distance between the baffle and the surface of the conveyor belt is adjustable, and the height of the baffle from the surface of the conveyor belt is less than 200mm.

[0014] More specifically, the crusher is equipped with a crusher jaw plate.

[0015] More specifically, a conveyor belt tensioner is provided on one side of the conveyor belt.

[0016] More specifically, the conveyor belt is equipped with a correction roller.

[0017] More specifically, the conveyor belt is equipped with several anti-deviation detectors.

[0018] More specifically, an in-belt cleaner is provided inside the conveyor belt.

[0019] More specifically, a weighing frame is provided on the conveyor belt.

[0020] More specifically, a speed sensor is installed on the conveyor belt.

[0021] The beneficial effects of this application are:

[0022] This device not only effectively removes pathogenic microorganisms and other harmful substances from infectious medical waste, reducing its harm to the environment and human health, but also achieves the harmless treatment of infectious medical waste, improving its resource utilization efficiency. The infectious medical waste disinfection and treatment device designed in this application features low energy consumption, high efficiency, and safety and environmental friendliness. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the infectious medical waste disinfection and treatment device in this application;

[0024] Figure 2 This is a schematic diagram of the crusher section in this application;

[0025] Figure 3 This is a schematic diagram of the medical waste feed hopper in this application;

[0026] Figure 4 This is a partial schematic diagram of the transmission belt in this application;

[0027] Figure 5 This is a schematic diagram of the medical waste disposal process in this application.

[0028] In the diagram: 1. Shielding body; 2. Electron accelerator; 3. Scanning box; 4. Crusher feed inlet; 5. Crusher main shaft; 6. Crusher cylinder; 7. Crusher jaw plate; 8. Crusher rotor; 9. High-pressure output pipe; 10. Discharge hopper; 11. Crusher chassis frame; 12. Conveyor belt feed inlet; 13. Conveyor belt tensioner; 14. Regulating valve; 15. Weighing frame; 16. Internal belt cleaner; 17. Correcting roller; 18. Anti-deviation detector. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0032] The infectious medical waste disinfection and treatment device designed in this application is as follows: Figure 1 As shown. The crusher crushes the medical waste, which then falls onto the conveyor belt through the feed inlet 12. The conveyor belt transports the crushed medical waste to the processing chamber enclosed by the shield 1. The scanning box 3 of the electron accelerator 2, located above the conveyor belt, is aligned with the conveyor belt and irradiates the crushed medical waste for disinfection. Infectious medical waste includes, but is not limited to, medicine bottles, masks, infusion tubes, infusion bags, syringes, protective clothing, cotton sheets, medical devices, expired medicines, etc. To ensure site safety, the electron accelerator 2 is placed within the space enclosed by the shield 1, which can greatly reduce the leakage of high-energy electron beams. To ensure good irradiation treatment effect, the medical waste is crushed into fragments smaller than 50mm. The fragments are output from the discharge hopper 10 through the high-pressure output pipe 9. The discharge hopper 10 is supported by the crusher chassis frame 11. To ensure that the fragments are evenly distributed on the surface of the output belt, the medical waste fragments output from the discharge hopper 10 first enter the feed inlet 12 of the conveyor belt. Figure 3 As shown, a regulating valve is installed at the feed inlet 12 of the conveyor belt to regulate the speed at which medical waste fragments enter the conveyor belt, thus preventing local accumulation of medical waste fragments.

[0033] like Figure 2 As shown, the crusher designed in this application has excellent crushing effect on infectious medical waste. The medical waste is fed into the crusher through the feed inlet 4, and the crusher rotor 8 driven by the motor can cut it evenly and efficiently. At the same time, the crusher cylinder 6 is equipped with crusher jaw plates 7, which can assist the crusher rotor 8 in crushing the medical waste more thoroughly.

[0034] like Figure 4As shown, the conveyor belt designed in this application is also equipped with a tensioner 13 for easy adjustment of the conveyor belt tension. A weighing frame 15 is also installed on the conveyor belt, connected to the control system, which can promptly acquire information about the load of crushed medical waste on the conveyor belt. A speed sensor is also installed inside the conveyor belt to sense the conveying speed and, according to the settings, adjust the frequency of the conveyor belt drive motor to ensure that the thickness of the medical waste fragments above the conveyor belt is within the effective penetration range of the electron accelerator, thus ensuring the effectiveness of irradiation sterilization. An internal cleaner is installed inside the conveyor belt to promptly remove any medical waste that may accidentally fall in. Corrective rollers and anti-deviation detectors are installed inside the conveyor belt to promptly correct any belt misalignment, ensuring the safe and stable operation of the conveyor belt.

[0035] In some specific implementations, to facilitate adjustment of the accumulation height of crushed medical waste on the conveyor belt, and to prevent excessive local accumulation, a baffle is installed on the side of the feed hopper facing the conveyor belt direction. The distance between the baffle and the surface of the conveyor belt is adjustable. Preferably, the height of the baffle from the surface of the conveyor belt is less than 200mm, ensuring that the accumulation height of the crushed medical waste is less than 200mm, guaranteeing that all the crushed medical waste receives sufficient electron beam irradiation, and ensuring the harmless treatment effect of infectious medical waste.

[0036] Example 1

[0037] The conveyor belt speed was controlled at 8.6 m / min. Then, three Bacillus subtilis ATCC9372 (formerly Bacillus subtilis var. niger) indicator sheets with a spore content of 1×10⁶ spores / unit were placed parallel above the conveyor belt at heights of 0 mm, 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 80 mm, 100 mm, and 120 mm above the medical waste fragments. The electron accelerator parameters were adjusted to a beam energy of 3 MeV and a beam intensity of 9 mA. The electron accelerator irradiation sterilization results are shown in Table 1.

[0038] Table 1 shows the density of pulverized medical waste is 0.08 g / cm³. 3 The killing effect of indicator bacteria at different locations is shown. The location indicates the depth of the medical waste shredded material, for example: 0 mm is the surface of the medical waste shredded material, and 120 mm is the bottom of the medical waste shredded material.

[0039]

[0040] Note: "+" indicates bacterial growth; "-" indicates sterile growth.

[0041] When the thickness of the medical waste shredded material is too high, the irradiation effect of the electron accelerator on the deep medical waste will be reduced, which may lead to poor sterilization and disinfection. Therefore, when the density of the medical waste shredded material is 0.08 g / cm³, the sterilization effect will be reduced. 3 When the conveyor belt speed is 8.6 m / min, the stacking thickness of medical waste should be controlled to be less than 120 mm.

[0042] Example 2

[0043] The conveyor belt speed was controlled at 1.3 m / min. Then, three Bacillus subtilis ATCC9372 (formerly Bacillus subtilis var. niger) indicator tablets with a spore content of 1×10⁶ spores / unit were placed parallel to each other at heights of 0 mm, 40 mm, 80 mm, 120 mm, 160 mm, 200 mm, 300 mm, and 400 mm above the conveyor belt. The electron accelerator parameters were adjusted to a beam energy of 10 MeV and a beam intensity of 2 mA. The electron accelerator irradiation sterilization results are shown in Table 2.

[0044] Table 2 shows the density of pulverized medical waste is 0.16 g / cm³. 3 Microbial indicator bacteria killing effect at different locations

[0045]

[0046] Note: "+" indicates bacterial growth; "-" indicates sterile growth.

[0047] When the thickness of the medical waste shredded material is too high, the irradiation effect of the electron accelerator on the deep medical waste will be reduced, which may lead to poor sterilization and disinfection. Therefore, when the density of the medical waste shredded material is 0.16 g / cm³, the sterilization effect will be reduced. 3 When the conveyor belt speed is 1.3m / min, the stacking thickness of medical waste should be controlled to be less than 200mm.

[0048] The embodiments of this utility model have been described in detail above, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. An infectious medical waste disinfection treatment apparatus, characterized by, The application relates to a medical waste treatment device, which comprises the following parts: a crusher for crushing infectious medical waste, wherein the crusher comprises a frame, a crusher feed inlet, a driving motor, a crusher spindle, a crusher rotor, a high-pressure output pipe and a discharge hopper, the crusher rotor is installed on the crusher spindle, the driving motor is connected with the crusher spindle, and the crushed medical waste is sprayed from the discharge hopper after being output through the high-pressure output pipe; an electron accelerator for irradiating the crushed infectious medical waste; a conveying belt for receiving the medical waste crushed by the crusher and conveying the medical waste to the irradiation port of the electron accelerator, wherein the crusher is arranged on one side of the conveying belt, and the electron accelerator is arranged on the other side of the conveying belt.

2. The infectious medical waste sterilization treatment apparatus according to claim 1, wherein One side of the conveying belt is provided with a medical waste feed hopper, and the crusher is arranged above the medical waste feed hopper.

3. The infectious medical waste sterilization treatment apparatus according to claim 2, wherein An adjusting valve is arranged in the medical waste feed hopper and used for adjusting the opening size of the feed hopper.

4. The infectious medical waste sterilization treatment apparatus according to claim 3, wherein A baffle plate is arranged on the side of the feed hopper, which is directed to the conveying direction of the conveying belt, the distance between the baffle plate and the surface of the conveying belt is adjustable, and the height of the baffle plate from the surface of the conveying belt is less than 200 mm.

5. The infectious medical waste sterilization treatment apparatus according to claim 1, wherein A crusher tooth plate is arranged in the crusher.

6. The infectious medical waste sterilization treatment apparatus according to claim 1, wherein A conveying belt tensioner is arranged on one side of the conveying belt.

7. The infectious medical waste sterilization treatment apparatus according to claim 1, wherein A plurality of deviation prevention detectors and deviation correction rollers are arranged on the conveying belt.

8. The infectious medical waste sterilization treatment apparatus according to claim 1, wherein An in-belt sweeper is arranged in the conveying belt.

9. The infectious medical waste sterilization treatment apparatus according to claim 1, wherein A scale frame is arranged on the conveying belt.

10. The infectious medical waste sterilization treatment apparatus according to claim 1, wherein A speed sensor is arranged on the conveying belt.

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